Looking for a sky event this week? Check out our full Sky This Week column. December 9: Dione and Tethys trade places Neptune is stationary at 7 P.M. EST, ending its retrograde motion. The ice giant ...
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Hubble and Juice reveal unprecedented details of interstellar comet 3I/ATLAS
Could one comet rewrite what is known about the chemistry and dynamics of distant planetary systems? That’s the question driving an extraordinary, multi-spacecraft campaign to study 3I/ATLAS-just the ...
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